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Optothermal properties of fibers. I. Relations between optical properties and change of the density and mechanical loss factor for annealed polyester fibers

โœ Scribed by A. A. Hamza; I. M. Fouda; M. M. El-Tonsy; F. M. El-Sharkawy


Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
770 KB
Volume
56
Category
Article
ISSN
0021-8995

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๐Ÿ“œ SIMILAR VOLUMES


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Two-beam interferometry and density methods previously measured are used to study the changes in optical properties of annealed and cold drawn polyester (PET) fibers. Some structural parameters in the present work are determined, such as form birefringence, the number of molecules per unit volume, t

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In this work, changes in the structure of polyester [poly(ethylene-terephtalate) (PET)] fibers after annealing at constant temperature (120 and 140ะŠC) and different times were studied interferometrically. The density of annealed PET fibers were measured by a system based on vibrating string. The Plu

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The structure developed of annealed Egyptain poly(ethyleneterephthalate) (PET) fibers is studied interferometerically due to the drawing process. Using a twobeam Pluta polarizing interference microscope connected to a device to dynamically study the draw ratio with the birefringence changes, the rel